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MRCOOL DIY 24,000 BTU 20 SEER Ductless Mini Split AC and Heat Pump with Wireless-Enabled Smart Controller



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Do you want a powerful and efficient heating and cooling system that is easy to install? Then the ideal product for you is the new MRCOOL 3rd Series Enhanced DIY ductless mini-split heat pump with enhanced wifi. Designed to make setup quick and easy, the MRCOOL DIY is flexible enough to be installed virtually anywhere without requiring specialized tools or expensive equipment. The 24,000 BTU unit is 20 SEER and designed to efficiently heat and cool a single 1000 Sq. Ft. room. The new SmartHVAC app is compatible with Amazon Alexa and Google assistant. You can control your DIY anywhere with your Apple or android smart device and an Internet connection. When it comes to doing it yourself, the MRCOOL DIY is your best option. This unit is shipped in two boxes.

  • New SmartHVAC app: wifi control - compatible with Amazon Alexa and Google assistant - you can control your DIY anywhere with your Apple or android smart device and an Internet connection
  • Easy DIY installation: pre-charged R-410A 25ft quick connect line doesn't require special tools, equipment, or training
  • Precharged 25' Quick Connect Line sets. These unique line sets are a cinch to get working. You’ll probably do it in less than 15 minutes.
  • Variable-speed DC inverter compressor technology cuts operating costs
  • Low ambient cooling: cooling down to 5°F - this feature makes the Mrcool DIY the ideal system for computer server rooms, greenhouses, and any other application that requires cooling all year
  • LEAKAGE DETECTION: Protecting Your Investment - When the MRCOOL DIY detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort.
  • Auto restart: never lift a finger - power outage? don’t worry, the Mrcool DIY auto restart will have the unit running again in no time at all
  • Gold fin condenser: corrosion resistant - live on the coast? don’t worry, our condenser is built to resist long term corrosion
  • SLEEP mode on remote:Sleep mode will automatically adjust the temperature to maximize comfort during night time sleep. When in COOL mode, the unit will increase the temperature by 2°F after 1 hour, and will increase an additional 2°F after another hour. When in HEAT mode, the unit will decrease the temperature by 2°F after 1 hour, and will decrease an additional 2°F after another hour.After 7 hours operating in SLEEP mode, the system will switch off automatically.
  • 7-year compressor warranty and 5-year parts warranty
  • Follow me feature: by pressing the 'follow me' button and keeping the remote close to you, you tell the air conditioner to set the temperature from wherever the remote happens to be, this counteracts the tendency for the air conditioner to stop cooling or heating because the air around the unit has reached its set temperature
  • Auto mode feature: In the Auto mode,the mini split can logically choose the mode of Cooling,and Heating by sensing the difference between the actual ambient room temperature and the setting temperature on the remote control.
  • Dehumidifying operation:In DRY mode, the system will reduce the humidity of the air in the room for increased comfort.The air conditioner will automatically cycle between cooling and fan only modes to dehumidify the air.The temperature can be set within a range of 62F - 86F in 1 F increments.
  • LOUVER POSITION MEMORY: Remembers So You Don’t Have To - Horizontal louver will automatically move to the same position as you set last time the unit was turned on.
  • Four speed with oscillation operation.
  • Remote Included
  • Two way draining connections further simplify installation and add flexibility.
  • Unlike any other ductless heat pump on the market, the MRCOOL DIY series mini-split system is specifically designed for easy, simple installation.
  • Most people can’t do their own electrical work, and that’s why the quick electrical connections on the MRCOOL DIY is a feature many will appreciate.
  • MRCOOL DIY temperature compensation technology helps keep you comfortable in any weather conditions.
  • Refrigerant leakage detection ensures your system remains operating efficiently without degradation due to undetected corrosion.
  • One of the most difficult aspects of typical heat pump installation is dealing with the refrigerant inside the coils. The MRCOOL DIY Series comes with precharged line sets avoiding one major obstacle to amateur installation in a single stroke.

Product Specifications

More Information
MRCOOL DIY 24,000 BTU 20 SEER Ductless Mini Split AC and Heat Pump with Wireless-Enabled Smart Controller
Weight (in lbs) 214.280000
Brand/Manufacturer MRCOOL
Additional Information install this innovative ductless system easily
Additional Information The system constantly monitors interior air temperature
Additional Information Precharged 410 Quick Connect Line sets.
Additional Information Sleep Mode easy to program to save money
Additional Information Horizontal louver will automatically keep the last position
Cooling BTU 23,000 BTU
Heating BTU 25,000 BTU
Decibel Level (dBA) Indoor Unit: 33.5-47
Energy Star Yes
Refrigerant R410A
SEER (Efficiency) 18-20
EER 12.5
Liquid Line 3/8"
Suction Line 5/8"
Electrical 208/230V 1 Phase 60 Hz
Max Breaker Size 30 amps
Min. Breaker Size 18 Amps
Mini-Split Type Wall Mounted
Zone Compatibility Single Zone
Height Indoor Unit: 13.19" | Outdoor Unit: 31.81"
Width Indoor Unit: 42.52" | Outdoor Unit: 37.24"
Depth Indoor Unit: 8.90" | Outdoor Unit: 16.14"
Additional Info Indoor Unit Weight: 31.08 lbs | Outdoor Unit Weight: 127.65 lbs
Warranty 7 Years Compressor and 5 Years Parts Limited Warranty with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information PROPOSITION 65 WARNING

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Questions and Answers

Customer Questions
Would like to know the lowest outside air temp this unit will run at? Wisconsin winters get to be a bit cold.
The lowest temperature this unit with run is approximately 5 degrees Fahrenheit.   If you have any further questions please feel free to give us call! Thanks
What gauge of wire do i need for hook up
12 gauge for runs up to 50 ft. Over 50ft upsize to 10 gauge. 
Does the heater still work with outside temperatures less then o degrees
These units will heat when the outside temperature is down to 5 degrees.
Where are they manufactured?
MRCOOL is based out of Kentucky however most of their mini-splits are manufactured in China.
Looks like it comes with the wall sleeve and wire to connect indoor unit is this right?
Thank you for your question. Yes, this MRCOOL DIY system includes both the wall sleeve and the communication wire for connecting the indoor unit to the outdoor unit.
Can the wall hole be drilled on either side of the air handler?
Thank you for your question. The refrigerant piping, which runs through the hole in the wall, can exit the indoor unit from behind the unit on the right hand side or the left hand side. For visuals and more information, please review pages 16-18 in the installation manual, found under this product's specifications. For more assistance, please give us a call.
Is warranty void if DIY homeowner install?
The warranty is NOT void if the unit is installed yourself. If you have any further questions please feel free to give us a call! Thank you.
How many square feet will the 24000 BTU unit cool and heat?
A 24,000 BTU system will generally heat and cool a space that is around 1,500 sq. ft. However, this number will vary based on a few other factors. The other factors include the following: the climate zone, the number of windows and the quality of insulation. For instance, a single zone in North Dakota with 5 windows and poor insulation will require a more powerful system than a single room in Indiana with 3 windows and quality insulation. For further information on sizing your system, please reference our Sizing Guide. If you have any further questions please give us a call.
Does the package include the condensate drain line?
Yes, all MRCOOL DIY single zone systems come with an included 25 foot condensate drain line. If you have any further questions please feel free to give us a call! Thanks.
Heat tapes?
Thank you for your question. Since the line sets are insulated, you shouldn't need to add heat tape. The insulation should provide the needed protection from the cold and winter weather. For more assistance, please give us a call.
Does a 24000 btu mini split require 230?
Yes, this unit requires a 230V electrical connection. If you have any further questions please feel free to give us a call! Thanks.
Can you add a water condensation pump?
"Thank you for your question. Yes, we do have an available condensate pump that is compatible with this system. This condensate pump can be purchased additionally as an accessory. It can be found on the product page with the other accessories or it can be found by Clicking Here For more assistance, please give us a call.
Can I add a split after I buy the 24000 unit
This is a single zone system and is incapable of supporting more than one indoor unit. We do offer multi zone DIY systems from both MRCOOL and Perfect Aire. If you have any further questions please feel free to give us a call! Thanks.
Can you get the charge line any shorter than 25 foot?
Thank you for your question. This system only comes with a 25' line set. For installations where this length is too long, we would recommend gently coiling the extra length of the line set. For more assistance, please give us a call.
Can I get a longer charge line?
Thank you for your question. The only line set length that can come with this particular MRCOOL DIY system is the 25'. For more assistance please give us a call.
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